Answer:
Step-by-step explanation:
diameter=2*radius
=2*9
=18 in
given central angle=72 degree
arc length=central angle /360° *πd
=72/360 *3.14*18
=1/5 *56.52
=56.52/5
=11.304
4 is the least the amount of sides the polygon can have
Answer: a< -4 D
Step-by-step explanation:
Answer:
option B
Step-by-step explanation:
Sum of interior angles of a polygon with n sides:
That is ,
OR
Sum of exterior angles of a regular polygon = 360
Given 1 exterior angle of the regular polygon is 40
Therefore ,